Gu. https://en.wikipedia.org/wiki/Gu_(poison) https://en.wikipedia.org/wiki/Gu_(poison) I’ve seen it translated as poison jar so that was where my mind turned

Gu. https://en.wikipedia.org/wiki/Gu_(poison) https://en.wikipedia.org/wiki/Gu_(poison) I’ve seen it translated as poison jar so that was where my mind turned to first.